Standard ML impact and status on Exercism

Standard ML

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About Standard ML

Practice

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60 mentors

Standard ML Track Management

This page provides the Exercism community with the information and tools needed to manage the Standard ML track.

Students

1,734

Submissions

13,256

Mentoring Discussions

103

The Standard ML track needs attention ⚠️

Building

Practice Exercises

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Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Synced primary repo: 6b93212aa25c1964f1e1bb597cae423132fd9562 (Updates should be instant)

Next goal: Implement 129 practice exercises. Find out more.

56 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

947

1,178 (avg. 1.2)

713 (75.3%)

0 (0.0%)

Leap

415

1,309 (avg. 3.2)

284 (68.4%)

33 (8.0%)

Two Fer

300

1,173 (avg. 3.9)

221 (73.7%)

38 (12.7%)

Scrabble Score

167 (avg. 7.0)

17 (70.8%)

1 (4.2%)

Space Age

165

881 (avg. 5.3)

118 (71.5%)

2 (1.2%)

Strain

44 (avg. 2.9)

12 (80.0%)

0 (0.0%)

Pangram

120

553 (avg. 4.6)

64 (53.3%)

3 (2.5%)

Collatz Conjecture

113

682 (avg. 6.0)

84 (74.3%)

6 (5.3%)

Isbn Verifier

17 (avg. 1.9)

5 (55.6%)

0 (0.0%)

Kindergarten Garden

2 (avg. 0.3)

2 (33.3%)

0 (0.0%)

Secret Handshake

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Matching Brackets

405 (avg. 4.8)

49 (58.3%)

4 (4.8%)

Matrix

1 (avg. 0.2)

1 (20.0%)

0 (0.0%)

Run Length Encoding

31 (avg. 5.2)

4 (66.7%)

0 (0.0%)

Square Root

70 (avg. 7.0)

5 (50.0%)

0 (0.0%)

Allergies

396 (avg. 5.5)

43 (59.7%)

3 (4.2%)

All Your Base

205 (avg. 2.7)

37 (48.7%)

4 (5.3%)

Anagram

198 (avg. 3.7)

35 (66.0%)

1 (1.9%)

Atbash Cipher

279 (avg. 6.6)

30 (71.4%)

0 (0.0%)

Bob

255 (avg. 4.1)

37 (59.7%)

1 (1.6%)

Diamond

124 (avg. 3.6)

25 (73.5%)

0 (0.0%)

Difference of Squares

168 (avg. 2.9)

44 (77.2%)

2 (3.5%)

Flatten Array

180 (avg. 3.3)

40 (72.7%)

2 (3.6%)

Wordy

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Hamming

153 (avg. 2.6)

43 (74.1%)

2 (3.4%)

List Ops

187

3,118 (avg. 16.7)

156 (83.4%)

1 (0.5%)

Nth Prime

111 (avg. 2.8)

28 (70.0%)

1 (2.5%)

Transpose

13 (avg. 3.3)

1 (25.0%)

0 (0.0%)

Perfect Numbers

149 (avg. 3.8)

28 (71.8%)

1 (2.6%)

Armstrong Numbers

1 (avg. 0.3)

1 (25.0%)

0 (0.0%)

Pop Count

26 (avg. 4.3)

4 (66.7%)

0 (0.0%)

Protein Translation

15 (avg. 1.7)

5 (55.6%)

0 (0.0%)

Rotational Cipher

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Phone Number

111 (avg. 3.1)

26 (72.2%)

0 (0.0%)

Isogram

4 (avg. 0.7)

2 (33.3%)

0 (0.0%)

Luhn

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Pig Latin

113 (avg. 3.1)

20 (55.6%)

1 (2.8%)

Prime Factors

51 (avg. 1.4)

23 (63.9%)

1 (2.8%)

Raindrops

173 (avg. 3.8)

32 (71.1%)

1 (2.2%)

Resistor Color

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

RNA Transcription

100 (avg. 2.7)

27 (73.0%)

0 (0.0%)

Pythagorean Triplet

1 (avg. 0.2)

1 (20.0%)

0 (0.0%)

Roman Numerals

57 (avg. 1.7)

22 (66.7%)

0 (0.0%)

Sum of Multiples

107 (avg. 2.5)

28 (65.1%)

0 (0.0%)

Reverse String

121 (avg. 2.8)

36 (83.7%)

1 (2.3%)

Acronym

66 (avg. 3.1)

17 (81.0%)

0 (0.0%)

Affine Cipher

85 (avg. 4.7)

11 (61.1%)

2 (11.1%)

Darts

8 (avg. 1.6)

4 (80.0%)

0 (0.0%)

Gigasecond

39 (avg. 2.4)

6 (37.5%)

0 (0.0%)

Sublist

1 (avg. 0.3)

1 (25.0%)

0 (0.0%)

Queen Attack

2 (avg. 0.4)

2 (40.0%)

0 (0.0%)

Yacht

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Triangle

97 (avg. 5.4)

13 (72.2%)

0 (0.0%)

Grains

3 (avg. 0.5)

2 (33.3%)

0 (0.0%)

Pascals Triangle

52 (avg. 2.5)

12 (57.1%)

0 (0.0%)

Palindrome Products

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

2 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Accumulate

150 (avg. 1.7)

77 (85.6%)

6 (6.7%)

Binary

4 (avg. 1.3)

2 (66.7%)

0 (0.0%)

73 unimplemented practice exercises

Alphametics

Bank Account

Binary Search

Binary Search Tree

Book Store

Bottle Song

Bowling

Change

Circular Buffer

Clock

Complex Numbers

Connect

Conway's Game of Life

Crypto Square

Custom Set

D&D Character

Dominoes

DOT DSL

Error Handling

ETL

Food Chain

Forth

Go Counting

Grade School

Grep

Hangman

High Scores

House

Killer Sudoku Helper

Knapsack

Largest Series Product

Ledger

Lens Person

Linked List

Markdown

Meetup

Micro Blog

Minesweeper

Nucleotide Count

OCR Numbers

PaaS I/O

Parallel Letter Frequency

Poker

POV

Proverb

Rail Fence Cipher

Rational Numbers

React

Rectangles

Resistor Color Duo

Resistor Color Trio

REST API

Robot Name

Robot Simulator

Saddle Points

Satellite

Say

Series

SGF Parsing

Sieve

Simple Cipher

Simple Linked List

Spiral Matrix

State of Tic-Tac-Toe

Tournament

Tree Building

Twelve Days

Two Bucket

Variable Length Quantity

Word Count

Word Search

Zebra Puzzle

Zipper

Programming Tags

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Help manage the tags used to group, filter and recommend solutions, approaches and articles.

0 tags

Test Runner

Learn More

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Current version: ed2892b82e58055a84a1a10b6f6bf3fca41b67b6 (Takes up to 10 mins to deploy)

Next goal: Get Test Runners to Version 2. Standard ML is currently utilising a Version 1 Test Runner. Find out more.

Total Test Runner Runs

12,880

Test Run Pass Rate

27.7% (3562)

Test Run Fail Rate

71.4% (9195)

Test Run Error Rate

1.0% (123)

Representer

Learn More

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Next goal: Build a Representer. Find out more.

Analyzer

Learn More

Build an Analyzer for Standard ML: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

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